Improvement in grain-drills



J. DAVIS.

Grain-Drill.

Patented Nm 14. 1865 UNITED STATES PATENT OFFICE.

JOHI\ DAVIS, OF ALLEGHENY CITY, PENNSYLVANIA.

IMPROVEMENT IN GRAIN-DRILLS.

Specificationforming part of Letters Patent No. 50,914, dated November 14. 1866; antedated November 2, 1865.

To all whom itmay concern:

Be it known that I, JOHN DAVIS, of the city and county of Allegheny, in the State of Pennsylvania, havein vented certain new and useful Improvements in Grain-Drills and Broadcast- Sowers; and I do hereby declare that the following'is a full and exact description thereof,

reference being had to the accompanying drawings, and to the letters of reference marked I thereon.

The nature of my invention consists in an arrangement of operatinggear for driving or tion of the seed-roller. Fig. 6 represents a top view of thereceivin g-chambersof thedrill-teeth, (marked 1).) Fig. 7 represents a transverse section of the hoppers. Fig. 8 represents a side view of one of the supports of theoperatinggear and a section of the frame to which said support is attached.

In the drawings, a a to represent the frame of the drill, in the outside bars of which are secured the drill-teeth, (marked 11,) which are furnished with receiving-chambers, (marked d.) The two front and two back receiving-chambers are furnished with dovetails for receiving the lugs c of the hoppers h. The hoppers or seed-chambers h and lb are divided into compartments equal in number to the teeth usedpartmeut, and all sown at the same tiine,when

so desired.

The hoppers or chambers h and h are furnished with inclined bottoms 5, (see Fig. 7,) chamber o, for the seed-roller, and a lid, t,which is hinged at a. g

f represents the tongue. represents the clevis,which is secured to the point of the drillframe, and is furnish ed with a number ofopeuings, (marked g,) which are used for regulating the position of the tongue j, which is secured to the clevis by means of bolts, (marked 0.)

The supports m are made in the form represented in Fig. 8, and are secured to the part of the frame marked a and a and in the position shown in Figs. 1 and 2, and are used for the purpose ot'supporting t-hehan g'ers (marked q.) The holes (marked g) in the supports m are used for the purpose of raising or lowering the driving-wheels, (marked 6,) by means of which, and in connection with the position of the tongue on the front end of the frame, the depth of drilling in is regulated.

In the holes 9 are placed stop-pins, which are used for the purpose of preventing the hangers q, shaft u, and wheels 5 and6 swinging beyond the point desired. It and lare the supports or bearings of the shaft j, on which are placed wheels 3 and 4.

The shaftj can be shifted in its bearings, by means of levers or other device, for the purpose ofshipping and unshipping the wheel marked3, thereby making the seed-roller operative or inoperative.

The seed-rollers are furnished with wheels 1 and 2, and series of seed-cells, which are of different sizes and depths, as represented in Fig. 5, and marked 9,10, 11, and 12. By having the seed-cells in the rollers A in series of different sizes and depths seed of difterent kinds and different quantities of the same kind can be sown.

The rollers A are covered with a sheath, B, as represented in Fig. 5, which is furnished with one series of openin gs,which are arrranged so as to correspond with the cells in the roller A and cover all the cells except the one series desired for sowing. This sheath B of the roller A may be secured to the roller in the desired position by means of a set-screw or any other known device. The hangers q,whieh serve as bearings for the shaft or axle u of the wheels 5 and 6, are secured to the supports m by means of bolts, (marked 0,) which are put through openings in the upper ends of the hangers q, as shown in Fig. 4. These bolts 0 secure the hangers q to the supports m by passing them through holes 9 in said supports m. By thus securing the hanger q the wheel 5 will always keep in gear with the wheel 4, for the axle or shaft to of'the wheels 5 and 6 will move in a line corresponding to the arc of wheel 4.

It will be observed that in the drawings but one end of the drill and broadcast-sewer is furnished with the operating-gear, (see Fig. 2,) but in makingthe working machine both ends are furnished with operating-gear,which is arranged and operated in like manner and for like purpose; and it will also be observed that by the use of the supports m, hangers q, and wheels 5 and 6,in connection with the other operating-gear, that the same depth of drilling can be obtained, however uneven the surface of the ground may be over which the drill has to work, for the wheel 6 will follow the surface,

i the hangers swinging up or down with the rise the tongue f in the desired position for obtaining the desired depth of drill, I then arrange the sheath B on the rollers A to suit the kind the desired seed-that is to say, if I desire to drill in oats and sow broadcast timothy-seed at the same tinie,I put the oats in the hoppers h and the timothy-seed in the hoppers h. I

then put the drill in motion, which will turnthe wheel 6,which will turn the wheel 5,which will turn the wheel 4,which will turn the wheel 3,which will turnthe wheel 2,which will turn the wheel 1, and thereby put in motion the seed-rollers A in the hoppers h and h, which motion of the seed-rollers will throw the seed in hoppers h in the desired quantities into the seed-chambers d of the drill-teeth b, from which it will fall into the furrows made by said drillteeth, and seed in the hoppers h will be sown broadcast through the openings y.

Having thus described the nature, construction, and operation of my improvement, what I claim as of my invention is- The arrangement of the supports m, hangers q, wheels 6, 5, 4, 3, 2, and 1, used in connection with the rollers A, sheath B, and hoppers h and h, the whole bein g constructed, arranged, and operating substantially as herein described, and for the purpose set forth.

JOHN DAVIS.

Witnesses:

JAMES J. J OHNSTON, ALEXANDER. HAYS. 

